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topoSet, patchToFace and faceToCell

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Old   May 1, 2019, 09:50
Default topoSet, patchToFace and faceToCell
  #1
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Raza Javed
Join Date: Apr 2019
Location: Germany
Posts: 183
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Hello Everyone,


My OpenFoam version is 4.1.


I am using fvOptions to use one face of a box(geometry) as a heat source.


To select one face as a heat source I am selecting selectionMode as a "cellSet".


To make cellSet, I am using topoSet, but I am new to it, and I don't know how to configure it. My toposetDict is given below:


Code:
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      topoSetDict;
}

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

actions
(
    {
        name    hot;
        type    faceSet;
        action  new;
        source  patchToFace;
        sourceInfo
        {
            name hotFace;
        }
    } 
// Select based on faceSet
    {
        name    hot;
        type    cellSet;
        action  new;
        source  faceToCell;
        sourceInfo
        {
            set hot;             // Name of faceSet

       //option neighbour; // cell with neighbour in faceSet
        //option owner;     //  ,,       owner
            option any;         // cell with any face in faceSet
            //option all;       // cell with all faces in faceSet
        } 
    }
);
when I select the option "any" in making cellSet, my log file for topoSetDict shows that the cellSet has created and shows its size also. As you can see below:


Code:
Create time

Create polyMesh for time = 0

Reading topoSetDict

Time = 0
    mesh not changed.
Created faceSet hot
    Applying source patchToFace
    Adding all faces of patch hotFace ...
    Found matching patch hotFace with 253 faces.
    faceSet hot now size 253
Created cellSet hot
    Applying source faceToCell
    Adding cells according to faceSet hot ...
    cellSet hot now size 253
End
But, when I select the option "all", it shows that the size of cellSet is "0". Given below:


Code:
Create time

Create polyMesh for time = 0

Reading topoSetDict

Time = 0
    mesh not changed.
Created faceSet hot
    Applying source patchToFace
    Adding all faces of patch hotFace ...
    Found matching patch hotFace with 253 faces.
    faceSet hot now size 253
Created cellSet hot
    Applying source faceToCell
    Adding cells according to faceSet hot ...
    cellSet hot now size 0
End
What am I doing wrong with topoSet file?

Can someone please help to resolve this issue? I shall be very thankful.
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Old   July 10, 2020, 10:16
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  #2
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Kamal Khemani
Join Date: Feb 2019
Location: India
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Hi Raza, did you solved this issue? Actually i'm also getting same kind of issue while selecting a subset from the faceset obtained from patchToFace command
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facetocell, fvoption, openfoam, patchtoface, toposet

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